/*
 * Copyright 2009 Jesse McLaughlin (nzjess@gmail.com)
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *         http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.travelfusion.xmlclient.module;

import org.apache.http.client.HttpClient;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.travelfusion.xmlclient.impl.transport.HttpCoreTransport;
import org.travelfusion.xmlclient.transport.TfXTransport;

import com.google.inject.AbstractModule;

/**
 * Configures a {@link HttpClient} instance for use by the {@link HttpCoreTransport} transport implementation.
 * <p>
 * A thread-safe connection manager is used.
 * 
 * @see HttpCoreTransport
 * 
 * @author Jesse McLaughlin (nzjess@gmail.com)
 */
public class HttpCoreTransportModule extends AbstractModule {

  private final HttpClient httpClient;

  public HttpCoreTransportModule() {
    HttpParams params = new BasicHttpParams();
    HttpConnectionParams.setConnectionTimeout(params, 15000);
    HttpConnectionParams.setSoTimeout(params, 60000);
    this.httpClient = createHttpClient(params);
  }

  public HttpCoreTransportModule(HttpParams params) {
    this.httpClient = createHttpClient(params);
  }

  public HttpCoreTransportModule(HttpClient httpClient) {
    this.httpClient = httpClient;
  }

  protected HttpClient createHttpClient(HttpParams params) {
    SchemeRegistry schemeRegistry = new SchemeRegistry();
    schemeRegistry.register(new Scheme("http", new PlainSocketFactory(), 80));
    ClientConnectionManager connectionManager = new ThreadSafeClientConnManager(params, schemeRegistry);
    return new DefaultHttpClient(connectionManager, params);
  }

  @Override
  public void configure() {
    bind(TfXTransport.class).to(HttpCoreTransport.class);
    bind(HttpClient.class).toInstance(httpClient);
  }

  public HttpClient getHttpClient() {
    return httpClient;
  }
}
